The Washington Post has an interesting poll running right now. It’s really just one question about what you call the commercial airport closest to DC.
Beneath that, there are several demographic questions that I’m sure they’ll try to correlate your answer like how old you are, where you grew up, and how often you fly out of that airport that we’re trying to figure out what to call.
I grew up in Fredericksburg, VA, which is about equidistant from said airport, Dulles, and Richmond International Airport. I mainly have flown out of Dulles because it’s a United hub and because I have cousins just a few minutes from the airport.
I answered that I call the other airport “National.” I’m fairly consistent about that though if I’m writing to an audience that knows the airports, I’ll usually write “DCA.”
What do you call that other airport in Northern Virginia that isn’t Dulles?